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Sismo leggero mag. 4.2 - Alaska, Stati Uniti, domenica, 2 ott 2022 15:03 (GMT -8) -

Sismo leggero magnitudine 4.2 a 168 km di profondità

2 Oct 23:06 UTC: Primo a segnalare: USGS dopo 3 minuti.
3 Oct 04:02: Magnitudine ricalcolata da 3.7 a 4.2. Profondità ricalcolata da 178.1 a 168.2 km (da 111 a 105 mi). Posizione dell'epicentro corretta di 3.4 km (2.1 mi) al NO.

Dettagli del sismo

Data e ora	2 Oct 2022 23:03:08 UTC -
Ora locale all'epicentro	domenica, 2 ott 2022 15:03 (GMT -8)
Status	Confermato
Magnitudine	4.2
Prof.	168.2 km
Epicentro latitudine / longitudine	59.4543°N / 154.4766°W (Borough di Lake and Peninsula, Alaska, Stati Uniti)
Antipodo	59.454°S / 25.523°E
Intensità di scuotimento	Scuotimento molto debole
Sentito	0 rapporti
Fonte dati primaria	USGS (United States Geological Survey)
Vulcano più vicino	Augustine (60 km / 37 mi)
Luoghi vicini	17 km E da Kokhanok (pop: 170) \| Mappa \| Sismi nelle vicinanze 38 km SE da Newhalen (pop: 182) \| Mappa \| Sismi nelle vicinanze 166 km O da Homer (pop: 5,520) \| Mappa \| Sismi nelle vicinanze 207 km OSO da Kalifornsky (pop: 7,850) \| Mappa \| Sismi nelle vicinanze 217 km OSO da Kenai (pop: 7,660) \| Mappa \| Sismi nelle vicinanze 319 km SO da Alaska City (pop: 298,700) \| Mappa \| Sismi nelle vicinanze 340 km SO da Eagle River (pop: 24,800) \| Mappa \| Sismi nelle vicinanze 340 km SO da Eagle River (Anchorage) (pop: 24,800) \| Mappa \| Sismi nelle vicinanze
Meteo all'epicentro al momento del sismo	Overcast Clouds 7.9°C (46 F), humidity: 86%, wind: 6 m/s (12 kts) from ESE
Energia sismica rilasciata stimata	1.3 x 10¹¹ joules (35 MWh, equivalent to 30.1 tons of TNT) \| about seismic energy

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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.

Mag.	Prof.	Ubicazione	Fonte
4.2	168 km	Southern Alaska	USGS
4.6	172 km	SOUTHERN ALASKA	EMSC
4.2	168 km	Southern Alaska	RaspberryShake
3.7	10 km	Southern Alaska	IRIS
4.5	176 km	Southern Alaska	GFZ

Most recent quakes Top 20 past 24 hrs Quakes in the US Alaska and Aleutian Islands

Seismograms

Seismic station: Augustine North, Augustine Island, Alaska (AUNO/AV network) | Distance from quake: 58 km / 36 mi | Show on map | Station Info

Seismic station Augustine North, Augustine Island, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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Seismic station Augustine North, Augustine Island, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Augustine North, Augustine Island, Alaska: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Iliamna Northeast, Iliamna, Alaska (ILNE/AV network) | Distance from quake: 104 km / 64 mi | Show on map | Station Info

Seismic station Iliamna Northeast, Iliamna, Alaska: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Iliamna Northeast, Iliamna, Alaska: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Bradley Lake, AK, USA (BRLK/AK network) | Distance from quake: 204 km / 126 mi | Show on map | Station Info

Seismic station Bradley Lake, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Bradley Lake, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Bradley Lake, AK, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Tigyukauivet Mountain, AK, USA (O14K/AK network) | Distance from quake: 385 km / 239 mi | Show on map | Station Info

Seismic station Tigyukauivet Mountain, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Tigyukauivet Mountain, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Tigyukauivet Mountain, AK, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: False Pass, AK, USA (FALS/AK network) | Distance from quake: 742 km / 461 mi | Show on map | Station Info

Seismic station False Pass, AK, USA: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station False Pass, AK, USA: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station False Pass, AK, USA: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

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